Use ChatGPT Work to turn approved research, business objectives, brand rules, and budget constraints into a cited campaign decision packet: show audience and message hypotheses, channel options, economics, owners, milestones, measures, and launch gates. Keep evidence separate from inference and strategy separate from authorization. ChatGPT must not invent customer certainty, approve claims, infer sensitive traits, commit budget, activate audiences, publish creative, or represent a plan as launched. The attached figures are projected role-task priors, not measured ChatGPT adoption by marketing managers, so they support a bounded planning trial rather than a claim about current practice.